Looks AMAZING Steve!
If I were to make one teeny tiny suggestion (not that you're about to change the paint up, but for future reference I guess), since I know you're receptive to constructive critique:
I realize that you painted her eyes from what you 'thought' you were seeing from the various reference photos I'm sure you sourced, but in terms of the lower lashes- I'd have loved to see them come up a bit higher and run along the outside of the lower lid more, and fade at the inner edges...perhaps using pastels and sealing them as opposed to paint?
As a girl, I just know that I apply my make up closer to the lid line. There's a little too much 'flesh' showing between the painted on lash line and the actual....do you see what I mean? What you've shown IS an actual make up technique (the most exaggerated use of this is seen in anime/cosplay and has been done for decades by Cassandra Peterson in her Elvira character.....mmmm.....to make her eyes appear larger than they are)...but I just don't see that happening with Scarlett's make up in Avengers.
Just a .02 cents, so take it for what it's worth. I still think it's a damn fine paint up and I still own four magnificent life sized busts, all painted by you, so you knows I love ya!! :$